SHA1_Init () is called through SSL_shutdown () in FIPS mode

Chethan Kumar Chethan.Kumar at
Fri Jun 14 09:35:06 UTC 2019

Hi all,

Need help in resolving an error or understanding the flow.
Openssl library we are using is FIPS capabled.
Openssl version is 1.0.2n with fips-2.0.16
Platform: Linux version 3.10.38-ltsi-WR6.0.0.11_standard (gcc version 4.8.1)
We have an application which uses libssl and libcrypto for its operations.
Application is crashing because of a call to SSL_shutdown().

Gdb trace is shown below.

(gdb) bt

#0  0x42926357 in raise () from /lib/

#1  0x42929962 in abort () from /lib/

#2  0x77453e7a in OpenSSLDie () from /home/SYSROM_SRC/build/release/lib/

#3  0x7745d0d8 in SHA1_Init () from /home/SYSROM_SRC/build/release/lib/

#4  0x774f75ee in init () from /home/SYSROM_SRC/build/release/lib/

#5  0x774ee8e0 in EVP_DigestInit_ex () from /home/SYSROM_SRC/build/release/lib/

#6  0x774ea1f9 in ssleay_rand_bytes () from /home/SYSROM_SRC/build/release/lib/

#7  0x774ea413 in ssleay_rand_nopseudo_bytes () from /home/SYSROM_SRC/build/release/lib/

#8  0x774eabd0 in RAND_bytes () from /home/SYSROM_SRC/build/release/lib/

#9  0x77654500 in tls1_enc () from /home/SYSROM_SRC/build/release/lib/

#10 0x77645eda in ssl3_dispatch_alert () from /home/SYSROM_SRC/build/release/lib/

#11 0x77644804 in ssl3_send_alert () from /home/SYSROM_SRC/build/release/lib/

#12 0x7764107e in ssl3_shutdown () from /home/SYSROM_SRC/build/release/lib/

#13 0x77662481 in SSL_shutdown () from /home/SYSROM_SRC/build/release/lib/

#14 0x088a300e in tcp_disconnect ()

#15 0x088a623f in soap_closesock ()

#16 0x08886929 in soap_serve___stg2__login(soap*) ()

#17 0x08865547 in soap_serve_request ()

#18 0x0885fdee in soap_serve ()

As far as I know, SHA1_Init() is restricted when FIPS is enabled.
I want to know, why SHA1_Init() was called even when FIPS is enabled.

Let me know, if any more information is required to resolve the issue.

Thanks in advance,
Chethan Kumar

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